Laptop won't recognize CD/DVD or hard drive, but they have power.

When I received the laptop it worked just fine. I changed the boot order to CD first and upon saving and restarting the machine, it somehow reset the BIOS and it no longer recognizes the drives. They have power, because I can open the CD drawer, but in the BIOS it doesn't list them. I thought about updating the BIOS, but you need a CD drive to do that.